Many of the kernel-level CODE words are marked to be inlined.

The compiler will automatically inline a definition whose INLINE field is set. SwiftForth takes advantage of this by having a header flag that indicates if a word is to be compiled inline or called. The nature of a subroutine-threaded implementation lends itself to inline code expansion. At the end of a colon definition, the conventional EXIT is replaced by a subroutine return (or by tail recursion).

SwiftForth substitutes direct code in place of subroutine calls wherever possible for efficiency.Ĭolon and code definitions do not have a code field distinct from the content of the definition itself data structures typically have a code field consisting of a call to the code for that data type. Subroutine threading is an implementation strategy in which references in a colon definition are compiled as subroutine calls. SwiftForth is a 32-bit, subroutine-threaded Forth system running as user application under Windows, Linux, and macOS. This section describes the implementation of the Forth virtual machine, and will be of interest to experienced Forth programmers. SwiftForth is designed to produce optimal performance. If you’re looking for something for your Beaglebone, Raspberry Pi, or other embedded ARM Linux board, check out SwiftX-ARM for Linux targets. SwiftForth requires an i386-compatible CPU. Command-line IDE for Linux: Linux 4.4 kernel or later (requires i386 32-bit library support).Command-line IDE for macOS: Mac OS X 10.6 through macOS 10.14 (requires 32-bit library support).GUI IDE for Windows: Windows 10 or later.These are the OS-specific requirements for SwiftForth: SwiftForth also includes the cross compiler, which compiles the kernel, so you can customize the kernel to your needs. The fully licensed version of SwiftForth includes complete source, including the kernel, Interactive Development Environment (IDE), and all features. Powerful rule-based optimizing compiler.Īfter installation, the full SwiftForth documentation (all in PDF format requires Adobe Reader) will be located in the SwiftForth/doc directory.Advanced debugging features include built-in cross reference, source browser, and disassembler/decompiler.Simple linking to the programmer’s editor of your choice.Command window provides interactive development environment.Includes SWOOP™, a powerful object-oriented Forth programming system.Easy access to all system functions and dynamic libraries.No need for an external compiler, assembler, or linker.SwiftForth brings the fast, powerful, ANS Forth programming language to Windows, Linux, and macOS. SwiftForth Programming Language References.Easy access to system functions via dynamic libraries.Libraries, Functions, Callbacks, and Threads.SWOOP: Object-Oriented Forth Programming.

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